Battery connecter for use in charging storage batteries



Oct. 5 1926.

J. R. MOYER BATTERY CONNBCTER FOR USE IN CHARGING STORAGE BATTERIES Filed Feb'. 29. 1924 Patented Oct. 5, 1926.

UNITED STATES.

1,602,039 PATENT OFFICE.

JOHN R. MOYEB, OF SCRAN TON, PENNSYLVANIA.

BATTERY CONNECTER FOR USE IN CHARGING STORAGE BATTERIES.

Application filed February 29, 1924. Serial No. 695,939.

This invention relates to electrical connecters, and more particularly to a detachable connecter for use in charging storage batteries.

In charging these storage batteries, an attendant drives a pointed pin into the lead post of the battery. This pin is provided witha suitable clip carrying a conductor which in turn is connected to one termineral of the rectifier. Similar pins, clips and connecters are used for interconnecting the other battery post to the other terminal of the rectifier. The present-day type of pins and conductor clip connections have proved unsuccessful because they are constantly coming loose from the lead post of the battery, and constantly corroding and breaking the connection to the conductor clips. When these pins become loose in the lead post of the battery, they cause vibrations in the electrical circuit and a consequent interruption of the charging, which results in the blowing out of the bulbs of the rectifier. These devices, in the main,

have been of one piece in construction, and

consequently when the pin has become broken, or when the tapping head of the pin has become smashed as a result of repeated use, the complete connecter has been rendered useless. I

One of the objects of the present invention is to provide a detachable connecter of the above character which comprises a slender pin having a long tapering sharp point whereby it will effectively grip into the lead post of the battery so that it will not jar loose and interrupt the charging circuit. Another object of this invention resides in providing a detachable connecter of the above character which comprises a slender pin having a relatively long tapering sharp point and a threaded upper end adapted to receive a detachable threaded nut and a detachable threaded striking cap, which nut and cap clampthe conductor clipbetween them when they are in screw threaded position on the pin.

sides in providing a detachable connecter of the character described comprising a slender steel pin having a long sharp point and an'upper thread-ed shank, a nut and striking cap adapted to thread on said shank and to clamp the conductor clip therebetween, said pin, n'ut, shank and clip being coated with parafiin to prevent the corrosion thereof by, acid fumes or splashings, which coating of paraflin on the point of the pin is adapted to peel upwardly as the point of the pin is driven into the lead post, leaving the remaining or exposed portion of the pin coated with parafiin.

These and other objects will be apparent.

from a perusal of the following specification when taken in connection with the accompanying drawing, wherein a Figure 1 is a side elevation of my improved detachable connecter disclosed as driven into the lead post of a battery and having a portion of the conductor attached thereto by means of the usual clip;

Fig. 2 is a perspective view of the striking cap, the conductor clip, the nut and the pin;

Fig. 3 is a sectional view of the cap, nut and clip on the pin, and

Fig. l is a modified form of the pin showing the manner of threading the upper pora relatively long tapering sharp point 4 to provide a very firm gripping surface when the pin is forced into the lead post. The upper portion of the pin 3 is provided with a threaded shank 5 of desired length. In the form of the invention illustrated in Fig. 2, this threaded portion 5 is of smaller diameter than the main portion of the pin 3 to form an abutment or shoulder 6, whereas, in Fig. 4, the threaded portion 7 is of the same diameter as the pin 8.

In order to provide my connecter with detachable parts which may be readily replaced if the pin becomes broken, or if the striking cap becomes smashed during repeated use, I provide a detachable threaded nut 9 having a threaded bore 10 adapted to screw on the shank 5 of the pin, and I also provide a striking cap 11 having a bore 12 internally threaded to screw also on the shank 5 of the pin 8. The upper end 13 of this bore 12 is either substantially wedgeshaped as illustrated in Fig. 3, or terminates at a distance less than the length of the shank portion 5 of the pin so that when the striking cap 11 is threaded on to the shank 5, the end 14 of the pin will abut firmly against the upper end of the bore 12 so that when a blow is struck on the top of the cap 11, the force of the blow will be -mainly transmitted against the end 14: of

the pin and will not be carried or borne by the threads of the shank 5 and the cap 11. This is very important, inasmuch as due to the repeated use of these connecters, each time the blow is struck, if the force of the blow is transmitted to the threads between the cap and the shank of the pin, these threads would soon become destroyed and the cap rendered useless.

In assembling a clip on one of my detachable connecters, the nut 9 is screwed on to the shank 5 and the hole 17 of the clip 15 which carries the conductor 16 is then forced over the shank 5 and the striking cap 11 is then threaded on to the shank 5 until the end 13 of the bore of the striking cap abuts the end 14: of the pin so that the cap can screw no farther. In this position, the nut 9 can be tightened against the striking cap 11 to firmly clamp the clip 15 therebetween. In certain constructions of the invention, the nut 9 is screwed on to the shank 5 against the shoulder 6. The clip 15 is then passed over the shank 5 and the striking cap 11 screwed down against the clip 15 to clamp the clip in position. In such a construction, the shank 5 of the pin 3 is of the proper length to firmly grip the clamp against the shoulder 6 when the striking cap 11 is in position so that its inner bore 13 abuts the end 14 of pin 3.

In the actual use of the invention, the pin 3, the nut 9 and striking cap 11, and also the clip 15, and the conductor 16 are dipped in paraflin so that an acid forms and splashings will not corrode on any of these parts. This coating 18 of paraffin adequately protects these parts from injury. It will be noted that when the pin 3 is driven into the lead post 2, the paraffin on the pointed end will be peeled backwardly and will gather around the edges of the hole where the tapered point 4 passes into the lead post. The remaining portion of the pin will retain its coating of parafiin. In this manner, the juncture of the hole in the post and the pin are protected by this paraflin which is peeled backwardly on the tapered portion 4.

The advantages of a connecter of the above described construction must be apparent. In actual practice it has been found that by using a durable steel pin of small diameter and providing the same with along tapering sharp point, the pin will penetrate the lead post with a single tap and will remain firmly embedded in the lead post, and will not jar or become loose. In fact, a sixty pound battery can be picked up by means of the connecter when such a pin is driven in as before stated. In releasing the pin, it is only necessary to give it a lateral blow and turn it slightly. A further material advantage in the above construction, resides in the fact that the connecter is made of separable parts, so that if a pin becomes worn out from constant use, it can be readily replaced, and on the other hand, when the striking cap becomes worn or lost, it can be replaced without providing an entirely new connecter.

It is obvious that minor changes in the details of construction and the arrangement of the parts may be made without departing from the spirit of the invention as set forth in the appended claims. I

Having thus described the invention, what I claim as new and desire to secure by Letters-Patent, is

1. A connecter for use in charging storage batteries comprising a slender, steel pin having one end tapered to form a substantially long, sharp point and having its opposite end threaded, a detachable nut, and a detachable striking cap, each having a threaded bore adapted to screw upon said threaded portion of said pin to clamp a conductor clip therebetween.

2. A connecter for use in charging storage batteries comprising a slender, steel pin having one end tapered to form a substantially long, sharp point and having its opposite end threaded, a detachable nut having a threaded bore adapted to screw upon said threaded portion, and a detachable striking ca having a bore in its under side interna ly threaded to screw upon said threaded portion of said pin, said threaded bore being constructed and arranged so that the end .wall thereof abuts the end of the threaded portion of said pin when said nut and cap are in clip clamping position whereby when said cap is struck, the force of the blow will bear mainly on the end portion of said pin.

3. A connecter for use in charging storage batteries comprising a slender, steel pin having one end tapered to form a substantially long, sharp point and having its opposite end threaded, a detachable nut, and a detachable striking cap, each having a threaded bore adapted to screw upon the threaded portion of said pin to clamp a conductor clip therebetween, said pin, nut and striking cap having their exposed parts coated with paraffin or the like to prevent corrosion by said fumes.

4. A connecter for use in charging storage batteries comprising a slender pin having one end thereof provided with a sharp point,

the other end of said pin bein threaded, a and a nut threaded onto said shank below striking cap having a central t readed bore the strikin head ard adapted to be turned 10 extending part way therethrough adapted to so as to 0 amp said clip against the lower engage the threaded end of said pin wlth the face of saidstriking head.

end of the pin resting a ainst the upper end In testimony whereof, I afiix my signaof said bore, a ternnna clip having a hole ture.

centrally thereof adapted to loosely fit on said threaded shank below said strikmg head JOHN R. MOYER. 

